Division of dataset into training and validation subsets by the jackknife validations to predict the pH optimum for beta-cellobiosidase
文献类型： 会议论文
第一作者： Shaomin Yan
作者： Shaomin Yan 1 ; Guang Wu 1 ;
作者机构： 1.National Engineering Research Center for Non-Food Biorefinery, State Key Laboratory of Non-Food Biomass and Enzyme Technology, Guangxi Biomass Engineering Technology Research Center, Guangxi Academy of Sciences, Nanning, China
关键词： Training;Industries;Computers;Biological system modeling;Computational modeling;Neurons;Predictive models
会议名称： International Conference on Advanced Electronic Materials, Computers and Software Engineering
主办单位：
页码： 671-675
摘要： In modeling, it is generally to divide the dataset into training and validation sub-datasets. Although it appears simple, how to divide the dataset is still somewhat debatable. Of various methods to make the division, the jackknife method is very popular and advocated by professor Kuo-Chen Chou. However, the jackknife method is in fact mainly referenced to the delete-1 jackknife validation because the rest jackknife methods are extremely time-consuming and computationally intensive. In this study, we use the jackknife validations from delete-1 to delete- n+2 to develop a neural network model for the optimization of pH in an enzymatic reaction of beta-cellobiosidase, which gets more and more attention from biofeul industries, but has a small number of documented operational parameters. The best neural network model and the best predictor were elaborated from 31 candidates of neural network with different layers and neurons, and 11 predictors related to the amino acid primary structure. The jackknife validation was performed from delete-1 to delete- 18. The results show that the [6], [1] model provides the best performance among two-layer models, and that multi-layer models perform better than the two-layer model. The delete-6 jackknife strategy has the best performance, which suggests the division of dataset at the ratio of one third.
分类号： tp3-53
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